The young swans are the offspring of the adult trumpeter swans that can be seen in Waterfowl Lake.

courtesy: Cleveland Metroparks Zoo

Adult male trumpeter swans can approach nearly 30 pounds.

The zoo says the births are important for the species. Since the ’90s, Cleveland Metroparks Zoo has taken part in a reintroduction program for trumpeter swans, raising them until they are old enough before releasing them in the wild.